4 Reales - Carlos IV Proclamation coinage

Proclamation coinage occupied a peculiar institutional niche in Spanish colonial practice — struck not for circulation but for ceremonial scattering during the public acclamation of a new monarch. When Carlos IV ascended following the death of Charles III in December 1788, each major colonial city staged a formal proclamation, and specially struck pieces like this one were literally thrown into crowds by local officials. They were caught, kept, and rarely spent.

Carlos IV's reign would prove turbulent — Napoleon's pressure eventually forced his abdication in 1808 — but in 1789 Mexico City was simply following protocol. The survival rate of proclamation pieces in decent condition is accordingly higher than comparable circulating issues of the same denomination.